WP Total Hardness

3-Isopropyl-1-methylbenzene (m-Isopropyltoluene), 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 535-77-3

Chrysene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1719-03-5

Oxadiazon, 100 µg/ml, Acetonitrile, 1ml